style: format code with autopep8

Format code with autopep8

This commit fixes the style issues introduced in f290961 according to the output
from Autopep8.

Details: https://app.deepsource.com/gh/avinashkranjan/Amazing-Python-Scripts/transform/b2bb689c-d974-4194-8596-a8df78e19e1f/

Author: deepsource-autofix[bot]

Coding Language Learning Game/coding_language_learning_game.py

@@ -18,10 +18,12 @@
     "hard": ["num1 = 10\nnum2 = 5\nprint(num1 * num2)", "def fibonacci(n):\n    if n <= 0:\n        return 'Invalid input'\n    elif n == 1:\n        return 0\n    elif n == 2:\n        return 1\n    else:\n        return fibonacci(n-1) + fibonacci(n-2)\nprint(fibonacci(6))"]
 }
 
+
 def get_random_code_snippet(difficulty):
     """Return a random Python code snippet based on the selected difficulty."""
     return random.choice(difficulty_levels[difficulty])
 
+
 def main():
     print("Welcome to the Coding Language Learning Game!")
     difficulty = input("Select difficulty (easy, medium, hard): ").lower()
@@ -65,5 +67,6 @@ def main():
 
     print(f"Your final score: {score}")
 
+
 if __name__ == "__main__":
     main()